Patent US2427656A successfully refreshed from Google Patents.
US2427656A
Expired / Lapsed
US
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Pump and shaft seal therefor
Assignee: Byron Jackson Co
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Filing: 1944-08-28
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Granted: 1947-09-23
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Expires: 1964-08-28
Abstract
No abstract record available.
Inventors
- 👤 Carl J Blom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:45
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/38; F04; F04D; F04D29/00; F04D29/08; F04D29/16; F04D29/165; F04D29/167; Y; Y10; Y10S; Y10S277/00; Y10S277/927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US715064A
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US879484A
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US1156063A
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US1910811A
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US2107260A
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US2129069A
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US2244450A
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US2257011A
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US2331641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-22 | 1951-03-24 | 1951-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-22 | 1955-03-24 | 1955-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-22 | 1959-03-24 | 1959-09-23 | $7700.00 | Window Closed / Lapsed |